Backup Lamp: Description and Operation

BACKUP LAMPS

When the transmission is placed in the reverse position, a signal is sent to the transmission control module (TCM). The TCM then sends a class 2 signal to the BCM. Battery positive voltage is supplied from the STOP/B/U Fuse to the BCM. The BCM then applies battery positive voltage through the backup lamp supply voltage circuit to the backup lamps. Ground is applied for the backup lamps at all times from G301.